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<P><FONT face=Courier><A 
href="http://my.opera.com/hautp/blog/2007/06/12/linux-command-vietnamese">http://my.opera.com/hautp/blog/2007/06/12/linux-command-vietnamese</A>  
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<P><FONT face=Courier>$<STRONG>echo</STRONG> "Hello 
World"&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></P>
<P><FONT face=Courier>$<STRONG>basename</STRONG> <FONT 
color=#800080>--version</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
trả về version&nbsp;information&nbsp;</FONT></P></body>
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